Chart correction 4370 — chart 1227
Chart 1227 [ previous update 3557/25 ] NAD83 DATUM Insert Ee 42° 49´·08N., 70° 48´·05W. Wk41/25 II 2.38
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.